Optical fiber coating and composition
AssigneeCorning Incorporated
InventorsJohn William Botelho, Ruchi Tandon
Life of this patent
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Abstract
A treated monomer for optical fiber coatings, a coating composition containing the treated monomer, a coating formed from a coating composition containing a treated monomer, and a fiber coated with the coating formed from a coating composition containing a treated monomer. The monomer is an alkoxylated alkyl acrylate and is formed by acrylating a polyol precursor. The monomer may include residual unreacted polyol precursor. The monomer is treated with a derivatizing agent to convert residual unreacted polyol to a derivative form. The derivative form is less susceptible to degradation to the corresponding non-alkoxylated alcohol or other lower alkoxylated alcohol. The treated monomer includes the alkoxylated alkyl acrylate and the derivative form of the polyol.
Claims20
A method of forming a coating comprising:
- adding a derivatizing agent to a monomer composition comprising an acrylate monomer, and an alkoxylated alcohol;
- the acrylate monomer having the formula:
- and the alkoxylated alcohol having the formula:
- said derivatizing agent converting said alkoxylated alcohol to a derivative compound having the formula:
- wherein n is an integer, R1 is H, an alkyl group, an aromatic group, or an alkyl-substituted aromatic group, R2 is an alkylene group, R3 is H or an alkyl group, and R4 is not H;
- wherein R1 is the same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound;
- wherein R2 is the same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound;
- and
- wherein n is same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound.
A method of preparing a monomer composition of a coating composition comprising:
- reacting an alkyl-substituted methacrylic acid with an alkoxylated alcohol to form a monomer composition comprising:
- an alkoxylated alkyl acrylate monomer;
- and
- unreacted alkoxylated alcohol;
- reacting the unreacted alkoxylated alcohol in the monomer composition with a derivatizing agent to form a derivative compound such that the monomer composition further comprises the derivative compound,
- the alkoxylated alkyl acrylate monomer having the formula
- the unreacted alkoxylated alcohol having the formula
- the derivative compound having the formula
- n is an integer, R1 is an alkyl group, an aromatic group, or an alkyl-substituted aromatic group, R2 is an alkylene group, R3 is H or an alkyl group, and R4 is not H;
- R1 is the same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound;
- R2 is the same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound;
- and
- n is same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound.
A method of coating an optical fiber comprising:
- reacting an alkyl-substituted methacrylic acid with an alkoxylated alcohol to form a monomer composition comprising:
- an alkoxylated alkyl acrylate monomer;
- and
- unreacted alkoxylated alcohol;
- reacting the unreacted alkoxylated alcohol in the monomer composition with a derivatizing agent to form a derivative compound such that the monomer composition further comprises the derivative compound;
- combining the monomer composition with an oligomer component to form a coating composition;
- coating an optical fiber with the coating composition;
- and
- curing the coating composition while coated onto the optical fiber;
- the alkoxylated alkyl acrylate monomer having the formula
- the unreacted alkoxylated alcohol having the formula
- the derivative compound having the formula
- n is an integer, R1 is an alkyl group, an aromatic group, or an alkyl-substituted aromatic group, R2 is an alkylene group, R3 is H or an alkyl group, and R4 is not H;
- R1 is the same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound;
- R2 is the same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound;
- and
- n is same for the acrylate monomer, the alkoxylated alcohol, and the derivative compound.
Dependencies are inferred from the claim text.